Walker, William, b. 1821 · New York : C. Scribner · leaf 270
Fig. 202. … Fig. 203. 16 242 0)1 Technical Perspective. THE PICTURE LINE, or Ground Line, or Base Line, is theline forming the bottom edge of the picture plane, and rest-ing on the ground plane. THE ELEVATION is the upright yiew of an object, as seenwhen directly in front of the spectator. A square is…
Drawing -- Study and teaching
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